Where: Texas (32.5° N, 97.9° W: paleocoordinates 8.7° S, 35.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Millsap Lake Formation (Strawn Group), Moscovian (315.2 - 307.0 Ma)

• Shale below the Kickapoo Falls limestone, Millsap Lake formation, Strawn group, lower Pennsylvanian. Desmoinesian in age.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified shale

Size class: macrofossils

Collection methods: Repository: Holotype in geological museum of Texas Christian University, Fort Worth, Texas; paratypes in Bureau of Economic Geology, The University of Texas

Primary reference: F. B. Plummer and G. Scott. 1937. Upper Paleozoic ammonites in Texas. The University of Texas Bulletin 3701:1-516 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 131321: authorized by Matthew Clapham, entered by Matthew Clapham on 23.07.2012

Creative Commons license: CC BY (attribution)